Valve and cock



I Jan. 7, 1930. w. E. CROSBY V 15 VALVE AND COCK Filed Aug. 15, 1927IN'VENTOK:

MLLMM [0mm 6100/ J 20' 42A; MA

ATTORNEYS.

Patented Jan. 7, 1930 UNITED STATES PATENT OFFICE WILLIAM EDWARD CROSBY?OF WANDSWORTH, LONDON, ENGLAND, ASSIGNOR TO THE ALUMINIUM PLANT ANDVESSEL COMPANY, LIMITED, 01 POINT PLEASANT, LON- DON, ENGLAND vanvn mcocx Application fled August 15, 1927, Serial No. 218,139, and in GreatBritain August 28, 1926.

This invention relates to improvements in and relating to valves andcocks, and is directed to plug-cocks, such as rotary cylindri; cal,spherical, tubular and like valves, and

I plug, bib and stop taps.

An object of the present invention is to provide a construction ofplug-cock or valve having an improved holding-down and packing device.

The accompanying drawing illustrates an example of a form of plug cockor valve constructed according to the present invention and embodyingthe features as above defined.

The barrel 1 adjacent the plu entrance is screw-threaded and receives at readed col-' lar 2, which collar forms the pressing'or holding downcomponent of the packing or leakage preventing device. In the examplethe barrel or body 1 has an upstanding internally threaded ring orflange 3, which ri or flange 3 may be an integral part of the arrel, orthe rmg may be an attached part. The collar 2 is externally threaded andenga es the said ring part. Suitable means, suc as a handle 10, may beprovided for screwing the collar to the aforesaid rin When a handle isprovided the relationshlp between the various parts can be easily variedto suit requirements without havin to use tools.

An appropriate faceo the collar 2, has a groove 4 or the equivalent forreceiving the packing component 5, which packing may be a resilientacking. ,In the present example the centre me of this pac 5 coincides,or substantiallycoincides, with t e joint or juncture 6 between the plug7 and the barrel 1.

The walls or ends 8 and 9 of the collar are of difierent length thatwall or end 8 remote from the screw ring bein extended in" le h to forma lower step or ase extension, so t at when the collar is moved towardsthe barrel, the lower step or base extension contacts with an apropriate part of the plug and forces this p ug onto t e barrel seatingthe plu and the barrel seating.

In re tionshi of the various parts allowance may be ma e whereby theapplied pressure imparted by the collar on the plug shall ing-inoperation or operations has or have been carried out.

In the example shown the relationship of thepacking component to theother parts is such that it will not prevent the collar from.

contacting with the plug, but at the same time provides an eifectiveseal to prevent leakage.

The invention is applicable to various types of cocks, as for example, astrai ht-throu h type, a multiway type and an ang e type. 11

the particular example described the cock is of the straight-throughtype with inlet and outlet connections at right angles to the axis ofrotation of the plug.

What I claim is 1. A-valve, comprisingdn combination, a valve body, aplug, a member engaging said valv body,\said member having a groove inits ower face and intermediate of its inner and outer edges, a packingcomponent held in said groove and overlappin the adjacent meeting ed esof the 'plug an valve body thebase of sai member being stepped, thelower step contacting with the plug so as to apply 1 pressure directlythereto.

2. A. valve, comprising in combination, a valvebody, anupstandingscrewed flange thereon, a plug, a screwed ring engagin saidflange, said ring having a groove in its ower face and intermediate ofits inner and outer edges, a acking component held in said edges of theplug and valve body, the base of said ring 'b'eing stepped, the lowerand inner step contacting with the plug so as to apply pressure directlythereto.

, In testimon whereof I aflix nay sigature.

@WILLl AM EDWARD R0 B to efiect an eficient working contact betweengroove an overlapping the adjacent meeting

